This is the new Docs for Chat SDK v4 beta for iOS. To see the previous Docs, click here.
Rate limits
Sendbird applications are rate-limited to ensure the best experience for users. If you exceed a rate limit, Sendbird server will return an error message that includes the encountered rate limit as well as how long you should wait before retrying.
Note : Sendbird organizations created after May 28, 2020, 00:00:00 UTC are automatically rate-limited, while those created before this date will be given sufficient time to adjust their applications before rate limits apply. Go to the Settings > Application > General on the Sendbird Dashboard to see which rate limits your organizations are subject to. If you need a higher rate limit for API requests, contact our sales team for further assistance.
Rate-limited methods
Rate limits apply to the SDK methods associated with objects including channel, user, message objects, and more. For example, a user can send up to 5 messages per second to an open channel or group channel. The following table lists the default rate limits per user.
List of default rate limits for SDK methods
SDK method
Calls per second
Calls per minute
Listing objects
20
120
Retrieving objects
20
120
Creating objects
10
120
Updating objects
10
120
Deleting objects
10
120
Profile image upload
2
40
File upload
4
60
Updating channel metacounter
20
400
Note : As for open channels, a separate rate limit is applied. They can display only 5 messages per second and excess messages are stored in our database, but not shown in the channel view.
Rate-limited real-time events
Some real-time events taking place on client apps are rate-limited in order to sustain stable operation. The following table lists the default rate limits for those events.
List of default rate limits for events
Event
Calls per second
Sending a message
5
Marking messages as read
3
Sending typing indicator to other members
0.1
Other events
* These include sending a file message, editing a message, or marking messages as delivered.
3
Note : Limits on sending typing indicator to channel members apply to both users and channels.
Error responses
When a request is rate-limited, a RateLimitExceeded (500910) or TooManyMessages (900200) error will be returned.